When I order form Quality Marine they list the speciesI guess it depends on the shipment they get. Last year I bought 12 from them but I didn’t look to see which species it was. Those did not touch any Aiptasia. When I went 2 weeks ago they only had the Lysmata ankeri. I asked if they can get Wurdemanni.
This was the response:
“Unfortunately suppliers don’t list the species when ordering typically. They are just listed as peppermint shrimp.”